The .33 WCF would actually be a much better choice in a High Wall. The .348 is limited by the flat nose bullets that the limited supply come in. As the .33WCF uses a .338 diameter bullet, you have a very large array of choices. Not for a lever gun, but a single-shot is an entirely different matter. I have great fondness for the .33 WCF. More than any other caliber, it was the one that started my life-long passion for this hobby. My Dad had a Win. '86 in .33 that he hunted big Minnesota whitetail with. I was enthralled with the rifle. I have owned many since that time. Today, I have five Win. 33's and two Marlin M1895 .33's. I load for this caliber of course.